I wasn't sure where to post this question but I figured that most of you Audiophiles have probably removed your package shelf once or twice. My problem is that when I stand outside of my car and look down through the rear window, I can see that the foam underneath the package shelf has decayed and has holes through it. The foam covers up the holes in the package shelf at the base of the rear window that go to the trunk. I think that replacing this foam is an easy job but I don't know where to get replacemnt foam or if there is something better to use. Thanks for your help - Dave